<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>Title</title>
</head>
<body>
<div id="app">
  <label for="male">
    <input type="radio" id = "male" value="男" v-model="sex">男
  </label>
  <label for="female">
    <input type="radio" id="female" value="女" v-model="sex">女
  </label>
  <h2>您选择的性别是：{{sex}}</h2>
</div>
  <script src="../../../project_practice/lunbotu/vue.js"></script>
  <script>
    const app = new Vue({
      el:'#app',
      data:{
        message:"你好啊！！",
        sex:'女'
      }
    })
  </script>
</body>
</html>